Ratna Iriani, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 1987
UI - Skripsi (Membership)
Aho, Alfred V., author
Prentice-Hall, 1972
Buku Teks
edited by Robert C. Berwick; Steven P. Abney; Carol Tenny
Kluwer Academic Publishers , 1991
Buku Teks
Aho, Alfred V., author
Prentice-Hall, 1973
Buku Teks
edited by Masaru Tomita
Kluwer Academic, 1991
Buku Teks